Qarl's Align Prim tool now in Phoenix and Imprudence

The Phoenix and Imprudence viewer now supports automatic prim
edge and face alignment. This feature comes courtesy of the former
Qarl Linden. Qarl Fizz posted a patch in October 1020, and it's so useful it is
already in in Imprudence
Experimental Release and in the standard
Phoenix release.

To use it, look for new selection checkbox on the build tool, just
above “Edit linked parts”. With the build tool open, select a group of prims,
then select the “Align” option. Click the arrows and dots that
appear for edges. Press Shift and click the arrows that appear for packing
the prims together.